百貨公司生命週期室內裝修環境衝擊評估——裝修二氧化碳減量對策之研究

Environmental Impact Assessment on Life Cycle of Interior Decoration Material in Department Stores: Strategies for Reducing CO2 Emission from Interior Decoration

本研究以建築物生命週期評估之觀念，探討並建立本土百貨業室內裝修建材耗能數據，以作為地球環境衝擊評估體系之一環。首先針對室內裝修建立50餘項裝修建材CO2 排放資料庫及基本模型；其次經由實際案例調查作解析印證，得出具體結論與建議。本研究以兩間具代表性之百貨公司為調查對象，綜合兩樣本百貨公司四大類室內裝修裝修與不同營業類別之數據，得出天花板類室內裝修CO2 排放量為7.84 ㎏-CO2/㎡，地坪類CO2 排放量為0.74 ㎏-CO2/㎡，牆面類CO2 排放量為6.92 ㎏-CO2/㎡，家具類CO2 排放量為5.86 ㎏-CO2/㎡，室內裝修單位面積總CO2 排放量為21.37㎏-CO2/㎡。進一步調查國內百貨公司之裝修行為，得知百貨公司於27 年使用年限中約進行3 次全館改裝以及數十次的局部改裝，27 年中室內裝修單位樓地板面積CO2 排放量為146.13 ㎏-CO2/㎡，環境衝擊相當可觀。本研究最後提出百貨公司室內裝修建材CO2 減量對策，以製造低耗能、回收性高、可重複組裝及耐用性好之建材產品等方式，達到降低室內裝修環境衝擊的目的。

To evaluate the environmental load from building industry, life cycle assessment (LCA) was used to evaluate CO2 emission. The purpose of this paper is to learn about the relationship between environmental burden and CO2 emission of interior decoration. It surveyed the condition of the interior decoration of department stores in Taiwan and established the database used for evaluating CO2 emission from more than 50 kinds of decoration materials. The CO2 emission is 7.84 ㎏-CO2/㎡ of ceiling materials, 0.74 ㎏-CO2/㎡ of ground materials, 6.92 ㎏-CO2/㎡ of wall materials, 5.86 ㎏-CO2/㎡ of furniture. The CO2 emission of all materials in department stores is 21.37 ㎏-CO2/㎡. The interior design changes so frequently that the interior decoration materials of department stores in Taiwan exhaust 146.13 ㎏-CO2/㎡ ,which has great influence on environmental load, during 27 years which is defined as the lifespan. Using green materials is a good choice for interior decoration to reduce CO2 emission. They are recyclable, can be assembled repeatedly and use less energy. Owing to energy structure changing with time, CO2 emission database must be renewed regularly.